Graduate Research Assistants
Karthika Kelat
Title/Position
Graduate Research Assistant
Emeritus Faculty
Kevin Berbaum, PhD
Title/Position
Professor Emeritus
Kevin Berbaum, now a professor emeritus of Radiology at the University of Iowa, dedicated more than 30 years of his career to the study of satisfaction of search (SOS), the phenomenon where the detection of one lesion impairs detection of others in an image. He studied this extensively, focusing on chest radiographs, chest CTs, abdominal contrast patients, and multi-trauma patients, and his insights into the nature of SOS have defined the field. He also made significant contributions to receiver operating characteristic (ROC) analysis by characterizing "proper" ROC curves and creating — with Donald Dorfman and Charlie Metz — the Dorfman-Berbaum-Metz algorithm for analyzing multi-reader observer performance studies, one of the most utilized methods for carrying out such analysis since its 1992 creation.
Mark Madsen, PhD
Title/Position
Professor Emeritus
Professor Emeritus in the Department of Radiology at The University of Iowa Carver College of Medicine. Dr. Madsen is a medical physicist with over 25 years of experience in medical image processing and image reconstruction. He has extensive experience using Interactive Data Language to create displays of digital images of various types.
Former Faculty
Kevin Schartz, PhD, MCS
Title/Position
Former Research Associate Professor
Kevin Schartz is a former Research Associate Professor in the Department of Radiology at the University of Iowa Roy J. and Lucille A. Carver College of Medicine. His educational background includes a Ph.D. in experimental psychology specializing in psychophysics and a master of computer science (M.C.S.) degree specializing in software engineering. Dr. Schartz worked with Dr. Donald Dorfman and Dr. Kevin Berbaum, beginning in 1998, developing and maintaining the Dorfman, Berbaum, and Metz (DBM) software (RSCORE, CBM, and MRMC). He also worked with Dr. Stephen Hillis to develop the Multi-Reader Sample Size Program for Diagnostic Studies.